Alum Lp Horz Strg Cab, 4-Cylinder Each - CAB247 FM Approved for the storage of flammables, also meets NFPA and OSHA specifications. Fully MIG-welded 14- and 18-gauge steel construction is built for a lifetime of continuous use14-gauge steel door faces are 56% thicker than competing cabinets. Three-point, zinc latch ensures fail-safe, non-sparking door closure. Recessed handle won't catch on passing traffic. 4" bullet hinges feature self-lubricating, fully enclosed brass pins, won't trap the grime that causes premature hinge failure. True double-wall construction with 1.5" of insulating air space adds fire protection. 2" leakproof sump contains leaks, drips and spills.